Missoubi



T. J. DAWSUN.

LAP RING.

APPLICATION FILED mm 1919.

1,314,637. Patented Sept. 2,1919.

TI Dawson THOMAS J. DAWSON, OF COLUMBIA, MISSOURI.

LAP-RING.

Specification of Letters Patent.

Patented Sept. 2, 1919.

Application filed January 27, 1919. Serial No. 273,460.

To all whom it may concern:

Be it known that I, THOMAS J. DAWSON, a citizen of the United States, residing at Columbia, in the county of Boone and State of Missouri, have invented certain new and useful Improvements in Lap-Rings, of

members has limited movement independently of the pivotal connection, so that said membersv when in working or overlapping relation will readily adjust or compensate themselves to the part or parts to which said members are engaged in the event such part or parts should be uneven or unduly worn so that the possibility of breaking the connecting or pivotal member is substantially entirely eliminated.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved lap ring whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, 1 will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a view in elevation of a lap ring constructed in accordance with an embodiment of my invention, a second position of one of the members being indicated by dotted lines;

Fig. 2 is a view in elevation of one of the members of my improved lap ring as herein included;

Fig. 3 is a view in elevation of the second member of the lap ring as herein disclosed; and

Fig. 4: is a sectional view taken substantially on the line 44. of Fig. 1.

As disclosed in the accompanying drawings, my improved lap ring comprises two substantially duplicate members A and B, which, when in assembled relation are re versely disposed. Each of the members A and B is substantially E shaped in form, and one of said members, as A, at the heel or connecting portion between an end member 1 and the central or body'portion 2 is provided with an openingor slot 3 angularly disposed relative to the longitudinal axis of "the central or body portionQ and preferably on an angle of substantially 45. The outer end portion or extremity of the end member 1 of the member B which 00- acts with the end member 1 of the member A just referred to isprovided with a slot 4 also angularly disposed and which registers with the opening 3 when the members A and B are in overlying and working rela- Loosely disposed through the openings 3 and 4 is a pivotal member 5 such as a rivet having its opposite end portions offset and which rivet is of a diameter less than the length of said openings 3 and 4 so that the members and are capable of limited movement one relatively to the other independently of their pivotal connecti0n,so that the device maybe applied or removed with greater facility, and further to afford means whereby .said members A and B when in working or applied position compensate for any irregularities of the part or parts with which the members A and B are engaged without imposing undue strain upon the pivotal member 5 which would otherwise result in the fracture or other injury to said member 5.

The central arms 6 of the members A and B, when said members are in overlapping or working relation closely approach each other as is clearly indicated in the accompanying drawings, and which arms 6 afl'ord effective means whereby an unhooking or uncoupling is prevented, particularly in the event when slack of motion or draft occurs, so that my improved lap ring is particularly adapted for use in connection with draft appliances particularly of a type used in connection with farming.

It is to be particplarly noted in Fig. 4 that the walls of the slots 3 and 4 are chamfered or oppositely beveled toward the center thereof, in order to facilitate the relative movements of the members A and B.

From the foregoing description, it is thought to be obvious that a lap ring constructed in accordance with my invention 15 particularly well adapted for use by reason of the convenience and facility with which it may be assembledand' operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof, and for this reason I do not wish to be understood 'as limiting myself to the precise arrangement and formation of theseveral parts herein shown in carrying out my invention in practice except as here- }inafter claimed. 1

I claim. a

e 1. As a new article of manufacture, a lap ring comprisingtwo substantially duplicate members reversely arranged, each of. said members including inwardly disposed end arms, one of said members at its junction with an end arm beingprovided with a slot inclined relative to the longitudinal axis of the member,-and an end arm of the second member having in its free end portion a slotadapted to completely register with the slot of theflfirstvnamedmember when the members are in overlapping relation, and a pivotal member loosely disposed through saidslots, said member being of a diameter lessth'an each of the slots, so that said first named members and rivet have relative movement lengthwise of the slots. a

2. As a new article of manufacture, a lap ring comprising two substantially duplicate members j reversely arranged, each of said members including inwardly disposed end arms, one of said members at its junction withalnend arm being provided with a slot inclined relative to the longitudinal axisv of the member, and an end arm of the second member having in its free end portion a slot adapted to completely register with the slot of the first named member when the members are in overlapping relation, and a pivotal member loosely disposed through 'said slots, said member being of a diameter less than each of the slots, so that said first named members and rivet have relative movement lengthwise of -the slots, each of said first named members being provided with an inwardly directed central arm.

3. As a new article of manufacture, a lap ring comprising two substantially duplicate members reversely arranged, each of said members -1nclud1ng lnwardly disposed end arms, one of said members at its, junction with an end arm being provided with a slot inclined relative to the-longitudinal axis of the member, and an end armof the second member having in its free end portion a slot adapted to completely register with the slot of the first named member when the members are in overlapping relation, and a pivotal member loosely disposed through said slots, said member being of a diameter less than each of the slots, so that said first THOMAS J. DAWSON.

Witnesses: A i

W. E. BOSWELL, JAMEs SHORT.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents,

" i i i Washington, D. G. 

